- having the mouth and air bladder connected by an air duct.
Origin of physostomous
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
- (of fishes) having a duct connecting the air bladder to part of the alimentary canalCompare physoclistous
C19: from Greek phusa bladder + -stomous, from stoma mouth